William Blair Investment Management, LLC

Investment Portfolio & 13F Holdings Analysis

About

Type: FundHoldings: 423Value: $35.6BLatest: 2025Q1

WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC is an institutional investment manager that filed its latest Form 13F for 2025Q1, reporting 423 holdings worth $35.6 billion. Form 13F filings provide transparency into the equity holdings of institutional investment managers with over $100 million in assets under management. This page displays the most recent portfolio holdings, allowing investors to track position changes, new investments, and portfolio composition.

AI_NATIVE detailed information: This accession holds the following tickers:[
  "NWE",
  "MMSI",
  "SE",
  "INSM",
  "FSV",
  "STVN",
  "APPF",
  "AZEK",
  "FLEX",
  "VRNS",
  "GTX",
  "GRAB",
  "ODD",
  "INSP",
  "MEG",
  "STEP",
  "TRU",
  "NOVT",
  "FLYW",
  "RRX",
  "POOL",
  null,
  "ALHC",
  "FTAI",
  "ITUB",
  "ACHC",
  "AR",
  "AFG",
  "WGS",
  "QTWO",
  "FROG",
  "EXAS",
  "HUM",
  "ALSN",
  "HUBG",
  "KRG",
  "ACN",
  "MDGL",
  null,
  "ABT",
  "PPBI",
  "A",
  "SBCF",
  "SHOO",
  "JLL",
  "TNET",
  "FRPT",
  "GOOGL",
  null,
  "AVT",
  "PRCT",
  "AIN",
  "ASO",
  "PEB",
  "RUSHA",
  "ATMU",
  "ANIP",
  "FOLD",
  "ATAT",
  "BSAC",
  "TEAM",
  "ASML",
  "EVH",
  "AVGO",
  "CP.TO",
  "AUB",
  "BMA",
  "FCPT",
  null,
  "KAR",
  "LXP",
  "KFY",
  "PWP",
  "MLKN",
  "NICE",
  "DT",
  "PDFS",
  "EHC",
  "SIGI",
  "UMH",
  "TITN",
  "AMBA",
  "SN",
  "OSW",
  "SRAD",
  "HELE",
  "TSEM",
  "MMYT",
  null,
  "IPAR",
  "RYI",
  "ADTN",
  "BBAR",
  "BKV",
  "CEPU",
  "IBN",
  "CLBT",
  "AZN",
  "INTU",
  "ESTA",
  "XPRO",
  "ISRG",
  "HURN",
  "IDA",
  "INGR",
  "AMAT",
  "IFS",
  "INVX",
  "ICE",
  "JBI",
  "META",
  "MIR",
  "MRCY",
  "NFE",
  "PAM",
  "RSI",
  "TGLS",
  "SR",
  "TMCI",
  "WAY",
  "KNSL",
  "LRCX",
  "LIN",
  "MRVL",
  "SILA",
  "MA",
  "PODD",
  "ABCB",
  "MSFT",
  null,
  "DOCS",
  "NEOG",
  "ELF",
  "ESE",
  "FRME",
  "FLS",
  "SUPV",
  "GTLB",
  "GXO",
  "GWRE",
  "NI",
  "HIG",
  "NU",
  "ODFL",
  "OMF",
  "ORLY",
  "ICLR",
  "ALK",
  "KKR",
  "DOC",
  "REG",
  "IWF",
  "PANW",
  "PGR",
  "UNH",
  "AAPL",
  "NVDA",
  "HPE",
  "PSTG",
  "KEYS",
  "MDB",
  null,
  "RY",
  "RELX",
  "NOW",
  "SHOP",
  "SAP",
  "SMFG",
  "TJX",
  "TYL",
  "UBER",
  "UL",
  "PNFP",
  "SM",
  "WMS",
  "LZB",
  "PCTY",
  "OEC",
  "MNRO",
  "MNST",
  "EWBC",
  "EBC",
  "BANR",
  "SHO",
  "TLN",
  "EPC",
  null,
  "ACVA",
  "STAG",
  "LKQ",
  "JBL",
  "AWI",
  null,
  "HR",
  "LPX",
  "USLM",
  "KOS",
  "PRMB",
  "EXP",
  "RNST",
  null,
  "LSCC",
  "MRTN",
  "TENB",
  "THR",
  "MOD",
  "OXM",
  "IWO",
  "GKOS",
  "MTD",
  "GMED",
  "GDEN",
  "RVLV",
  "GOGO",
  "WGO",
  "GGG",
  "TSM",
  "LRN",
  "GPN",
  "EAF",
  "THS",
  "PR",
  "ETR",
  "GEF",
  "VRTX",
  null,
  "GVA",
  "AGCO",
  "GDYN",
  "HWC",
  "HASI",
  "HAE",
  "GGAL",
  "MMS",
  "MTG",
  "MTDR",
  "ONB",
  "RGLD",
  "MUSA",
  "MLI",
  "PSN",
  "PBF",
  "TCBI",
  "SHC",
  "ACGL",
  "TMHC",
  "TOL",
  "USFD",
  "TKR",
  "AMD",
  "ALLE",
  "EPAM",
  "TAP",
  "WSO",
  "AJG",
  "IWP",
  "WEX",
  "CGNT",
  "ECVT",
  "ESRT",
  "EFSC",
  null,
  "FOXF",
  "EXTR",
  "GPOR",
  "ASR",
  "KN",
  "LANC",
  "IDXX",
  "KLIC",
  "RACE",
  "NVO",
  "AMZN",
  "COLD",
  "ELME",
  "ABM",
  "AL",
  "REXR",
  "HIMS",
  "DOX",
  "ELS",
  "HDB",
  "SMP",
  "TPH",
  "HBAN",
  "VCEL",
  "VLTO",
  "VERX",
  "VRNT",
  "VRRM",
  "VEEV",
  "VSH",
  "VIST",
  "VICI",
  "VITL",
  "COCO",
  "WFRD",
  "WMT",
  "WAFD",
  "WERN",
  "WBS",
  "WAL",
  "WST",
  "WLY",
  "WINA",
  "WTW",
  "WSC",
  "WDAY",
  "YPF",
  "YUMC",
  "ZETA",
  "ZIP",
  "ADC",
  "LOCO",
  "AVNS",
  "ADT",
  "OC",
  "POWI",
  "ONTO",
  "HI",
  "G",
  "SITM",
  "FBNC",
  "EXLS",
  "JBHT",
  "KNX",
  "RDY",
  "INFY",
  "JCI",
  "HST",
  null,
  "LH",
  "EMBC",
  "PPL",
  "PLNT",
  "TWST",
  "TCOM",
  "CRM",
  "SIG",
  "QTRX",
  "SANM",
  "TPG",
  "TFX",
  "SPOT",
  "MANH",
  "LYV",
  "LNTH",
  "MELI",
  "NVT",
  "WNS",
  "EG",
  "BCPC",
  "AVTR",
  "AXTA",
  "BANC",
  "BBVA",
  "BDC",
  "BBY",
  "TECH",
  "BLFS",
  "BPMC",
  "BFAM",
  "BCO",
  "BRC",
  "BC",
  "BAM.TO",
  "CACI",
  "CADE",
  "BWXT",
  "BURL",
  "CCJ",
  "CPT",
  "CWST",
  "CG",
  "CARR",
  "CTRE",
  "CECO",
  "STEL",
  "CENTA",
  "CAKE",
  "SKY",
  "CHE",
  "GTLS",
  "CIEN",
  "CB",
  "CHDN",
  "CMG",
  "CWAN",
  "YOU",
  "KO",
  "CGNX",
  "COLB",
  "CNDT",
  "CMC",
  "CODI",
  "CFLT",
  "CPRT",
  "COST",
  "CTVA",
  "CBRL",
  "BAP",
  "CRH",
  "CCK",
  "CSGS",
  "CW",
  "DDOG",
  "DAR",
  "DSGX",
  "DBD",
  "DLX",
  "DIOD",
  "DBRG",
  "DCI",
  "DFIN",
  "NEE",
  "STT",
  "ETN",
  "LLY",
  "NFLX",
  "APO",
  "MLM",
  "JPM",
  "ZTS"
]

Filing Details

13F-HR • 2025-03-31

SEC FilingSEC DataHachi Filing

Report Date: 2025-03-31
Filing Date: 2025-05-09
Total Holdings: 423
Total Value: 35621637487
Accession Number: 0001644956-25-000018
Form Type: 13F-HR
CIK: william-blair-investment-management
Manager Name: William-Blair-Investment-Management

Data Enrichment

97% identified

410 identified13 unidentified

Holdings

SEC FilingSEC DataHachi Filing

Manager:

423 positions • $35.6B total value

SEC FilingSEC DataHachi Filing

Manager:

Search and click to pin securities to the top

Page 1 of 22

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MICROSOFT CORP

MSFT|594918104

Shares:4.1M

Value:$1.5B

% of Portfolio:4.3% ($1.5B/$35.6B)

NVIDIA CORP

NVDA|67066G104

Shares:12.2M

Value:$1.3B

% of Portfolio:3.7% ($1.3B/$35.6B)

TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD

TSM|874039100

Shares:7.4M

Value:$1.2B

% of Portfolio:3.4% ($1.2B/$35.6B)

AMAZON COM INC

AMZN|023135106

Shares:6.1M

Value:$1.2B

% of Portfolio:3.3% ($1.2B/$35.6B)

Apple Inc.

AAPL|037833100

Shares:5.2M

Value:$1.2B

% of Portfolio:3.3% ($1.2B/$35.6B)

Meta Platforms, Inc.

META|30303M102

Shares:1.6M

Value:$906.2M

% of Portfolio:2.5% ($906.2M/$35.6B)

Mastercard Inc

MA|57636Q104

Shares:1.2M

Value:$666.1M

% of Portfolio:1.9% ($666.1M/$35.6B)

Carlyle Group Inc.

CG|14316J108

Shares:12.2M

Value:$530.6M

% of Portfolio:1.5% ($530.6M/$35.6B)

Broadcom Inc.

AVGO|11135F101

Shares:3.1M

Value:$515.5M

% of Portfolio:1.4% ($515.5M/$35.6B)

MERCADOLIBRE INC

MELI|58733R102

Shares:255.6K

Value:$498.6M

% of Portfolio:1.4% ($498.6M/$35.6B)

Sea Ltd

SE|81141R100

Shares:3.7M

Value:$479.9M

% of Portfolio:1.3% ($479.9M/$35.6B)

Primo Brands Corp

PRMB|741623102

Shares:11.4M

Value:$404.7M

% of Portfolio:1.1% ($404.7M/$35.6B)

COPART INC

CPRT|217204106

Shares:6.8M

Value:$385.0M

% of Portfolio:1.1% ($385.0M/$35.6B)

O REILLY AUTOMOTIVE INC

ORLY|67103H107

Shares:258.8K

Value:$370.8M

% of Portfolio:1.0% ($370.8M/$35.6B)

INTUIT INC.

INTU|461202103

Shares:575.6K

Value:$353.4M

% of Portfolio:1.0% ($353.4M/$35.6B)

CHIPOTLE MEXICAN GRILL INC

CMG|169656105

Shares:6.8M

Value:$341.5M

% of Portfolio:1.0% ($341.5M/$35.6B)

COSTCO WHOLESALE CORP /NEW

COST|22160K105

Shares:353.6K

Value:$334.4M

% of Portfolio:0.9% ($334.4M/$35.6B)

UNITEDHEALTH GROUP INC

UNH|91324P102

Shares:625.0K

Value:$327.4M

% of Portfolio:0.9% ($327.4M/$35.6B)

LINDE PLC

LIN|G54950103

Shares:690.8K

Value:$321.7M

% of Portfolio:0.9% ($321.7M/$35.6B)

Stride, Inc.

LRN|86333M108

Shares:2.3M

Value:$293.4M

% of Portfolio:0.8% ($293.4M/$35.6B)

Instrument	Shares		Other Manager	Value	% of Portfolio
MICROSOFT CORP(MSFTcusip594918104)	4.1M	QoQ -6.85% (-304.0K) YoY -4.63% (-200.5K)	All Managers (Combined)	$1.5B	4.3% ($1.5B/$35.6B)	QoQ -17.04% (-$318.4M) YoY -14.90% (-$271.5M)
NVIDIA CORP(NVDAcusip67066G104)	12.2M	QoQ -8.14% (-1.1M) YoY +895.04% (+11.0M)	All Managers (Combined)	$1.3B	3.7% ($1.3B/$35.6B)	QoQ -25.86% (-$461.3M) YoY +19.35% (+$214.4M)
TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD(TSMcusip874039100)	7.4M	QoQ -4.66% (-360.4K) YoY -22.55% (-2.1M)	All Managers (Combined)	$1.2B	3.4% ($1.2B/$35.6B)	QoQ -19.86% (-$302.9M) YoY -5.50% (-$71.2M)
AMAZON COM INC(AMZNcusip023135106)	6.1M	QoQ -10.48% (-716.4K) YoY -3.68% (-234.0K)	All Managers (Combined)	$1.2B	3.3% ($1.2B/$35.6B)	QoQ -22.36% (-$335.4M) YoY +1.59% (-$18.2M)
Apple Inc.(AAPLcusip037833100)	5.2M	QoQ +2.64% (-134.9K) YoY NEW(+5.2M)	All Managers (Combined)	$1.2B	3.3% ($1.2B/$35.6B)	QoQ -8.95% (-$114.4M) YoY NEW(+$1163.8M)
Meta Platforms, Inc.(METAcusip30303M102)	1.6M	QoQ -5.50% (-91.6K) YoY +670.96% (+1.4M)	All Managers (Combined)	$906.2M	2.5% ($906.2M/$35.6B)	QoQ -6.98% (-$68.0M) YoY +815.09% (+$807.1M)
Mastercard Inc(MAcusip57636Q104)	1.2M	QoQ -15.39% (-221.1K) YoY -17.15% (-251.7K)	All Managers (Combined)	$666.1M	1.9% ($666.1M/$35.6B)	QoQ -11.92% (-$90.2M) YoY -5.71% (-$40.4M)
Carlyle Group Inc.(CGcusip14316J108)	12.2M	QoQ -8.13% (-1.1M) YoY +2.97% (-352.1K)	All Managers (Combined)	$530.6M	1.5% ($530.6M/$35.6B)	QoQ -20.69% (-$138.4M) YoY -4.30% (-$23.9M)
Broadcom Inc.(AVGOcusip11135F101)	3.1M	QoQ +375.40% (+2.4M) YoY NEW(+3.1M)	All Managers (Combined)	$515.5M	1.4% ($515.5M/$35.6B)	QoQ +243.33% (+$365.3M) YoY NEW(+$515.5M)
MERCADOLIBRE INC(MELIcusip58733R102)	255.6K	QoQ -1.12% (-2.9K) YoY -29.59% (-107.4K)	All Managers (Combined)	$498.6M	1.4% ($498.6M/$35.6B)	QoQ +13.43% (-$59.1M) YoY -9.15% (-$50.2M)
Sea Ltd(SEcusip81141R100)	3.7M	QoQ +64.69% (+1.4M) YoY NEW(+3.7M)	All Managers (Combined)	$479.9M	1.3% ($479.9M/$35.6B)	QoQ +102.56% (+$243.0M) YoY NEW(+$479.9M)
Primo Brands Corp(PRMBcusip741623102)	11.4M	QoQ +2.15% (+240.1K) YoY NEW(+11.4M)	All Managers (Combined)	$404.7M	1.1% ($404.7M/$35.6B)	QoQ +17.82% (+$61.2M) YoY NEW(+$404.7M)
COPART INC(CPRTcusip217204106)	6.8M	QoQ +1.98% (+132.3K) YoY +23.74% (+1.3M)	All Managers (Combined)	$385.0M	1.1% ($385.0M/$35.6B)	QoQ +0.56% (+$2.2M) YoY +20.90% (+$66.6M)
O REILLY AUTOMOTIVE INC(ORLYcusip67103H107)	258.8K	QoQ +10.02% (+23.6K) YoY +15.26% (+34.3K)	All Managers (Combined)	$370.8M	1.0% ($370.8M/$35.6B)	QoQ +32.91% (+$91.8M) YoY +46.26% (+$117.3M)
INTUIT INC.(INTUcusip461202103)	575.6K	QoQ -1.36% (-8.0K) YoY +13.12% (+66.8K)	All Managers (Combined)	$353.4M	1.0% ($353.4M/$35.6B)	QoQ -3.64% (-$13.4M) YoY +6.86% (+$22.7M)
CHIPOTLE MEXICAN GRILL INC(CMGcusip169656105)	6.8M	QoQ +9.26% (-576.6K) YoY +6149.22% (+6.7M)	All Managers (Combined)	$341.5M	1.0% ($341.5M/$35.6B)	QoQ -9.02% (-$33.9M) YoY +7.94% (+$25.1M)
COSTCO WHOLESALE CORP /NEW(COSTcusip22160K105)	353.6K	QoQ +4.86% (+16.4K) YoY -0.79% (-2.8K)	All Managers (Combined)	$334.4M	0.9% ($334.4M/$35.6B)	QoQ +8.23% (+$25.5M) YoY +28.07% (-$73.3M)
UNITEDHEALTH GROUP INC(UNHcusip91324P102)	625.0K	QoQ -5.69% (-37.8K) YoY -36.04% (-352.3K)	All Managers (Combined)	$327.4M	0.9% ($327.4M/$35.6B)	QoQ -2.36% (-$7.9M) YoY -32.29% (-$156.1M)
LINDE PLC(LINcusipG54950103)	690.8K	QoQ -29.89% (-294.6K) YoY -46.08% (-590.4K)	All Managers (Combined)	$321.7M	0.9% ($321.7M/$35.6B)	QoQ -22.03% (-$90.9M) YoY -45.92% (-$273.2M)
Stride, Inc.(LRNcusip86333M108)	2.3M	QoQ -5.97% (-147.4K) YoY +31.31% (+553.1K)	All Managers (Combined)	$293.4M	0.8% ($293.4M/$35.6B)	QoQ +14.44% (-$37.0M) YoY +163.45% (+$182.1M)